2001 HW31

2001HW31, 1998 WB33, 1998WB33, 72840, J98W33B, K01H31W

All data for this body: [vot]

MPC data
Name (number) 2001 HW31 (72840)
a 3.09986
e 0.07135
i / sin(i) 17.2202 / 0.29605
q 2.87868
Q 3.32104
ω 85.6234
Node 68.7115
m 217.4903
n 0.1806
Epoch 2460800.5
nobs 1954
nopp 22
Years observed 1998-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent Ursula (375)
 
ap 3.104
ep 0.086
sin(ip) 0.282
G 0.150
H 13.790
Mass
D 10.47 0.124
pV 0.070 0.0108
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
375 Ursula 0 Ursula Novakovic 2019EPSC...13.1671N HCM
375 Ursula 631 Ursula Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1036 0.0862 0.2818 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.47 0.124 0.124 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.070 0.0108 0.0108 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.79 MPC-2023-12-04 MPC-2023-12-04 Phot